大常量输出，小常量输入
The Big Constant Out, The Small Constant In
摘要：
不久前，蔡特林提出了一个新颖而不寻常的建议，提出了一个消除任意宇宙学常数的作用量。然而，所提出的行动的形式被重力环效应强烈地修改，破坏了它的好处。在这里，我将讨论将Tseytlin的操作嵌入到更广泛的上下文中，从而能够控制循环效果。更广泛的背景是另一个宇宙，有自己的度量和动态，但只是在全球范围内与我们联系在一起。另一个宇宙的一个可能的拉格朗日量是不间断的AdS超引力。我们宇宙中的真空能量不会为我们产生任何曲率，而是增加或减少另一个宇宙中的AdS曲率。我评论如何在这个框架中引入加速膨胀在技术上自然的方式，并考虑的情况下，这是由大质量引力及其扩展的自加速解决方案。
英文摘要：
Some time ago, Tseytlin has made an original and unusual proposal for an action that eliminates an arbitrary cosmological constant. The form of the proposed action, however, is strongly modified by gravity loop effects, ruining its benefit. Here I discuss an embedding of Tseytlin's action into a broader context, that enables to control the loop effects. The broader context is another universe, with its own metric and dynamics, but only globally connected to ours. One possible Lagrangian for the other universe is that of unbroken AdS supergravity. A vacuum energy in our universe does not produce any curvature for us, but instead increases or decreases the AdS curvature in the other universe. I comment on how to introduce the accelerated expansion in this framework in a technically natural way, and consider the case where this is done by the self-accelerated solutions of massive gravity and its extensions.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
